Datasheet

Data Sheet ADAS1000/ADAS1000-1/ADAS1000-2
Rev. A | Page 9 of 80
NOISE PERFORMANCE
Table 3. Typical Input Referred Noise over 0.5 Second Window (µV p-p)
1
Mode Data Rate
2
GAIN 0 (×1.4)
±1 VCM
GAIN 1 (×2.1)
±0.67 VCM
GAIN 2 (×2.8)
±0.5 VCM
GAIN 3 (×4.2)
±0.3 VCM
Analog Lead Mode
3
High Performance Mode 2 kHz (0.5 Hz to 40 Hz) 8 6 5 4
2 kHz (0.05 Hz to 150 Hz) 14 11 9 7.5
1
Typical values measured at 25°C, not subject to production test.
2
Data gathered using the 2 kHz packet/frame rate is measured over 0.5 seconds. The ADAS1000 internal programmable low-pass filter is configured for either 40 Hz or
150 Hz bandwidth. The data is gathered and post processed using a digital filter of either 0.05 Hz or 0.5 Hz to provide data over noted frequency bands.
3
Analog lead mode as shown in Figure 58 and Figure 57.
Table 4. Typical Input Referred Noise (μV p-p)
1
Mode Data Rate
2
GAIN 0 (×1.4)
±1 VCM
GAIN 1 (×2.1)
±0.67 VCM
GAIN 2 (×2.8)
±0.5 VCM
GAIN 3 (×4.2)
±0.3 VCM
Analog Lead Mode
3
High Performance Mode 2 kHz (0.5 Hz to 40 Hz) 12 8.5 6 5
2 kHz (0.05 Hz to 150 Hz) 20 14.5 10 8.5
16 kHz 95 65 50 39
128 kHz 180 130 105 80
Low Power Mode 2 kHz (0.5 Hz to 40 Hz) 13 9.5 7.5 5.5
2 kHz (0.05 Hz to 150 Hz) 22 15.5 12 9
16 kHz 110 75 59 45
128 kHz 215 145 116 85
Electrode Mode
4
High Performance Mode 2 kHz (0.5 Hz to 40 Hz) 13 9.5 8 5.5
2 kHz (0.05 Hz to 150 Hz)
21
15
11
9
16 kHz 100 70 57 41
128 kHz 190 139 110 85
Low Power Mode 2 kHz (0.5 Hz to 40 Hz) 14 9.5 7.5 5.5
2 kHz (0.05 Hz to 150 Hz) 22 15.5 12 9.5
16 kHz 110 75 60 45
128 kHz 218 145 120 88
Digital Lead Mode
5, 6
High Performance Mode 2 kHz (0.5 Hz to 40 Hz) 16 11 9 6.5
2 kHz (0.05 Hz to 150 Hz) 25 19 15 10
16 kHz 130 90 70 50
Low Power Mode 2 kHz (0.5 Hz to 40 Hz) 18 12.5 10 7
2 kHz (0.05 Hz to 150 Hz) 30 21 16 11
16 kHz
145
100
80
58
1
Typical values measured at 25°C, not subject to production test.
2
Data gathered using the 2 kHz packet/frame rate is measured over 20 seconds. The ADAS1000 internal programmable low-pass filter is configured for either 40 Hz or
150 Hz bandwidth. The data is gathered and post processed using a digital filter of either 0.05 Hz or 0.5 Hz to provide data over noted frequency bands.
3
Analog lead mode as shown in Figure 58 and Figure 57.
4
Single-ended input electrode mode as shown in Figure 59 and Figure 57.
5
Digital lead mode as shown in Figure 59 and Figure 57.
6
Digital lead mode is available in 2 kHz and 16 kHz data rates.